<template>
    <view style="position: relative;">
        <view v-if="type === '2'" class="verify-img-out"
             :style="{height: (parseInt(imgSize.height) + vSpace) + 'px'}"
            >
            <view class="verify-img-panel" :style="{width: imgSize.width,
                                                   height: imgSize.height,}">
                <image :src="'data:image/png;base64,'+backImgBase" alt="" style="width:100%;height:100%;display:block"></image>
                <view class="verify-refresh" @click="refresh" v-show="showRefresh">
                    <text class="iconfont icon-refresh"></text>
                </view>
                <transition name="tips">
                    <text class="verify-tips" v-if="tipWords" :class="passFalg ? 'suc-bg':'err-bg'" >{{tipWords}}</text>
                </transition>
            </view>
        </view>

        <!-- 公共部分 -->
        <view class="verify-bar-area" :style="{width: imgSize.width,
                                              height: '40px',
                                              'line-height':'40px'}">
            <text class="verify-msg" v-text="text"></text>
            <view class="verify-left-bar"
                 :style="{width: leftBarWidth?leftBarWidth:'40px', height: '40px', 'border-color': leftBarBorderColor, transaction: transitionWidth}">
                <text class="verify-msg" v-text="finishText"></text>
                <view class="verify-move-block"
                     @touchstart="start"
                     @touchend ="end"
                     @touchmove ="move"
                     :style="{width:'40px', height: '40px', 'background-color': moveBlockBackgroundColor, left: moveBlockLeft, transition: transitionLeft}">
                    <text :class="['verify-icon iconfont', iconClass]"
                       :style="{color: iconColor}"></text>
                    <view v-if="type === '2'"
                         class="verify-sub-block"
                         :style="{'width':Math.floor(parseInt(imgSize.width)*47/310)+ 'px' ,
                                  'height': imgSize.height,
                                  'top':'-' + (parseInt(imgSize.height) + vSpace) + 'px',
                                  }"
                         >
                         <image :src="'data:image/png;base64,'+blockBackImgBase" alt=""  style="width:100%;height:100%;display:block"></image>
                         </view>
                </view>
            </view>
        </view>
    </view>
</template>
<script>
    /**
     * VerifySlide
     * @description 滑块
     * */
    import {aesEncrypt} from "./../utils/ase.js"
	import {myRequest} from "../utils/request.js"
    export default {
        name: 'VerifySlide',
        props: {
            captchaType:{
                type:String,
            },
            type: {
                type: String,
                default: '1'
            },
            //弹出式pop，固定fixed
            mode: {
                type: String,
                default: 'fixed'
            },
            vSpace: {
                type: Number,
                default: 5
            },
            explain: {
                type: String,
                default: '向右滑动完成验证'
            },
            imgSize: {
                type: Object,
                default() {
                    return {
                        width: '310px',
                        height: '155px'
                    }
                }
            },
            blockSize: {
                type: Object,
                default() {
                    return {
                        width: '50px',
                        height: '50px'
                    }
                }
            },
            barSize: {
                type: Object,
                default() {
                    return {
                        width: '100%',
                        height: '40px'
                    }
                }
            }
        },
        data() {
            return {
                secretKey:'',        //后端返回的加密秘钥 字段
				passFalg:false,      //请求通过与否
                backImgBase:'',      //验证码背景图片
                blockBackImgBase:'', //验证滑块的背景图片
                backToken:"",        //后端返回的唯一token值
                startMoveTime:"",    //移动开始的时间
                endMovetime:'',      //移动结束的时间
                tipsBackColor:'',    //提示词的北京颜色
                tipWords:'',
                text: '',
                finishText:'',
                setSize: {
                    imgHeight: 0,
                    imgWidth: 0,
                    barHeight: 0,
                    barWidth: 0
                },
                top: 0,
                left: 0,
                moveBlockLeft: undefined,
                leftBarWidth: undefined,
                // 移动中样式
                moveBlockBackgroundColor: undefined,
                leftBarBorderColor: '#ddd',
                iconColor: undefined,
                iconClass: 'icon-right',
                status: false,	    //鼠标状态
                isEnd: false,		//是够验证完成
                showRefresh: true,
                transitionLeft: '',
                transitionWidth: ''
            }
        },
        methods: {
            init() {
                this.text = this.explain
                this.getPictrue();
                this.$nextTick(() => {
                    this.$parent.$emit('ready', this)
                })
            },

            //鼠标按下
            start: function (e) {
                this.startMoveTime = new Date().getTime();   //开始滑动的时间
                if (this.isEnd == false) {
                    this.text = ''
                    this.moveBlockBackgroundColor = '#337ab7'
                    this.leftBarBorderColor = '#337AB7'
                    this.iconColor = '#fff'
                    e.stopPropagation();
                    this.status = true;
                }
            },
            //鼠标移动
            move: function (e) {
                var query = uni.createSelectorQuery().in(this);
                this.barArea = query.select('.verify-bar-area')
                var bar_area_left,barArea_offsetWidth;
                this.barArea.boundingClientRect(data => {
                    bar_area_left = Math.ceil(data.left) 
                    barArea_offsetWidth =Math.ceil(data.width) 

                if (this.status && this.isEnd == false) {
                    if (!e.touches) {   //兼容移动端
                        var x =Math.ceil(e.clientX);
                    } else {     //兼容PC端
                        var x =Math.ceil(e.touches[0].pageX) ;
                    }
                    // var bar_area_left = this.getLeft(this.barArea);
                    
                    var move_block_left = x - bar_area_left //小方块相对于父元素的left值
                    if (this.type !== '1') {		//图片滑动
                        if (move_block_left >= barArea_offsetWidth - parseInt(parseInt(this.blockSize.width) / 2) - 2) {
                            move_block_left = barArea_offsetWidth - parseInt(parseInt(this.blockSize.width) / 2) - 2;
                        }
                    } 

                    if (move_block_left <= 0) {
                        move_block_left = parseInt(parseInt(this.blockSize.width) / 2);
                    }

                    //拖动后小方块的left值
                    this.moveBlockLeft = (move_block_left - parseInt(parseInt(this.blockSize.width) / 2) ) + "px"
                    this.leftBarWidth = (move_block_left - parseInt(parseInt(this.blockSize.width) / 2)) + "px"
                    
                }
                }).exec();
            },

            //鼠标松开
            end: function () {
                this.endMovetime =new Date().getTime(); 
                var _this = this;
//                判断是否重合
                if (this.status && this.isEnd == false) {
                    if (this.type !== '1') {		//图片滑动
                        var moveLeftDistance = parseInt((this.moveBlockLeft || '').replace('px', ''));
                        
                        moveLeftDistance = moveLeftDistance * 310/ parseInt(this.imgSize.width)

                        var captchaVerification = this.secretKey ?aesEncrypt(this.backToken+'---'+JSON.stringify({x:moveLeftDistance,y:5.0}),this.secretKey):this.backToken+'---'+JSON.stringify({x:moveLeftDistance,y:5.0})
                        let data = {
                            captchaType:this.captchaType,
                            "pointJson":this.secretKey ? aesEncrypt(JSON.stringify({x:moveLeftDistance,y:5.0}),this.secretKey):JSON.stringify({x:moveLeftDistance,y:5.0}),
                            "token":this.backToken
                        }
                        myRequest({
                            url: `/captcha/check`,
                            data,
                            method:"POST",
                        }).then((result) => {
							let res = result.data
							if (res.repCode == "0000") {
								this.moveBlockBackgroundColor = '#5cb85c'
								this.leftBarBorderColor = '#5cb85c'
								this.iconColor = '#fff'
								this.iconClass = 'icon-check'
								this.showRefresh = true
								this.isEnd = true;   
								setTimeout(()=>{
									if (this.mode=='pop') {
										this.$parent.clickShow = false;
									}
									this.refresh();
								},1500)
								this.passFalg = true
								this.tipWords = `${((this.endMovetime-this.startMoveTime)/1000).toFixed(2)}s验证成功`
								setTimeout(()=>{
									this.tipWords = ""
									this.$parent.$emit('success', {captchaVerification})
								},1000)
							}else{
								this.moveBlockBackgroundColor = '#d9534f'
								this.leftBarBorderColor = '#d9534f'
								this.iconColor = '#fff'
								this.iconClass = 'icon-close'
								this.passFalg = false
								setTimeout(()=>{
									this.refresh();
								}, 1000);
								this.$parent.$emit('error',this)
								this.tipWords = "验证失败"
								setTimeout(()=>{
									this.tipWords = ""
								},1000)
							}
						})
                    } 
                    this.status = false;
                }
            },
            refresh: function () {
                this.showRefresh = true
                this.finishText = ''
                this.transitionLeft = 'left .3s'
                this.moveBlockLeft = 0
                this.leftBarWidth = false
                this.transitionWidth = 'width .3s'
                this.leftBarBorderColor = '#ddd'
                this.moveBlockBackgroundColor = '#fff'
                this.iconColor = '#000'
                this.iconClass = 'icon-right'
                this.getPictrue()
                this.isEnd = false
                setTimeout(() => {
                    this.transitionWidth = ''
                    this.transitionLeft = ''
                    this.text = this.explain
                }, 300)
            },

            //获取left值
            getLeft: function (node) {
                let leftValue = 0;
                while (node) {
                    leftValue += node.offsetLeft;
                    node = node.offsetParent;
                }
                let finalvalue = leftValue;
                return finalvalue;
            },

            // 请求背景图片和验证图片
            getPictrue(){
                let data = {
                    captchaType:this.captchaType
                }
                myRequest({
                    url: '/captcha/get', //仅为示例，并非真实接口地址。
                    data,
                    method:"POST",
                }).then((result) => {
                        let res = result.data
                        if (res.repCode == "0000") {
                            this.backImgBase = res.repData.originalImageBase64
                            this.blockBackImgBase = res.repData.jigsawImageBase64
                            this.backToken = res.repData.token
                            this.secretKey = res.repData.secretKey
                        }
                    })
            },
        },
        watch: {
            // type变化则全面刷新
            type: {
                immediate: true,
                handler() {
                    this.init()
                }
            }
        },
        mounted() {
        },
    }
</script>
<style scoped>
    .verifybox{
        position: relative;
        box-sizing: border-box;
        border-radius: 2px;
        border: 1px solid #e4e7eb;
        background-color: #fff;
        box-shadow: 0 0 10px rgba(0,0,0,.3);
        left: 50%;
        top:50%;
        transform: translate(-50%,-50%);
    }
    .verifybox-top{
        padding: 0 15px;
        height: 50px;
        line-height: 50px;
        text-align: left;
        font-size: 16px;
        color: #45494c;
        border-bottom: 1px solid #e4e7eb;
        box-sizing: border-box;
    }
    .verifybox-bottom{
        /* padding: 15px; */
        box-sizing: border-box;
    }
    .verifybox-close{
        position: absolute;
        top: 13px;
        right: 9px;
        width: 24px;
        height: 24px;
        text-align: center;
        cursor: pointer;
    }
    .mask{
        position: fixed;
        top: 0;
        left:0;
        z-index: 1001;
        width: 100%;
        height: 100vh;
        background: rgba(0,0,0,.3);
        /* display: none; */
        transition: all .5s;
    }
    .verify-tips{
        position: absolute;
        left: 0px;
        bottom:0px;
        width: 100%;
        height: 30px;
        background-color:rgb(231, 27, 27,.5);
        line-height:30px;
        color: #fff;
    }
	.suc-bg{
	   background-color:rgba(92, 184, 92,.5);  
	   filter: progid:DXImageTransform.Microsoft.gradient(startcolorstr=#7f5CB85C, endcolorstr=#7f5CB85C);
	}
	
	.err-bg{
	   background-color:rgba(217, 83, 79,.5);  
	   filter: progid:DXImageTransform.Microsoft.gradient(startcolorstr=#7fD9534F, endcolorstr=#7fD9534F);
	}
	
	
    .tips-enter,.tips-leave-to{
        bottom: -30px;
    }
    .tips-enter-active,.tips-leave-active{
        transition: bottom .5s;
    }
    /* ---------------------------- */
    /*常规验证码*/
    .verify-code {
        font-size: 20px;
        text-align: center;
        cursor: pointer;
        margin-bottom: 5px;
        border: 1px solid #ddd;
    }

    .cerify-code-panel {
        height: 100%;
        overflow: hidden;
    }

    .verify-code-area {
        float: left;
    }

    .verify-input-area {
        float: left;
        width: 60%;
        padding-right: 10px;

    }

    .verify-change-area {
        line-height: 30px;
        float: left;
    }

    .varify-input-code {
        display: inline-block;
        width: 100%;
        height: 25px;
    }

    .verify-change-code {
        color: #337AB7;
        cursor: pointer;
    }

    .verify-btn {
        width: 200px;
        height: 30px;
        background-color: #337AB7;
        color: #FFFFFF;
        border: none;
        margin-top: 10px;
    }
    
    
    /*滑动验证码*/
    .verify-bar-area {
        position: relative;
        background: #FFFFFF;
        text-align: center;
        -webkit-box-sizing: content-box;
        -moz-box-sizing: content-box;
        box-sizing: content-box;
        border: 1px solid #ddd;
        -webkit-border-radius: 4px;
    }

    .verify-bar-area .verify-move-block {
        position: absolute;
        top: 0px;
        left: 0;
        background: #fff;
        cursor: pointer;
        -webkit-box-sizing: content-box;
        -moz-box-sizing: content-box;
        box-sizing: content-box;
        box-shadow: 0 0 2px #888888;
        -webkit-border-radius: 1px;
    }

    .verify-bar-area .verify-move-block:hover {
        background-color: #337ab7;
        color: #FFFFFF;
    }

    .verify-bar-area .verify-left-bar {
        position: absolute;
        top: -1px;
        left: -1px;
        background: #f0fff0;
        cursor: pointer;
        -webkit-box-sizing: content-box;
        -moz-box-sizing: content-box;
        box-sizing: content-box;
        border: 1px solid #ddd;
    }

    .verify-img-panel {
        margin: 0;
        -webkit-box-sizing: content-box;
        -moz-box-sizing: content-box;
        box-sizing: content-box;
        border-top: 1px solid #ddd;
        border-bottom: 1px solid #ddd;
        border-radius: 3px;
        position: relative;
    }

    .verify-img-panel .verify-refresh {
        width: 25px;
        height: 25px;
        text-align: center;
        padding: 5px;
        cursor: pointer;
        position: absolute;
        top: 0;
        right: 0;
        z-index: 2;
    }

    .verify-img-panel .icon-refresh {
        font-size: 20px;
        color: #fff;
    }

    .verify-img-panel .verify-gap {
        background-color: #fff;
        position: relative;
        z-index: 2;
        border: 1px solid #fff;
    }

    .verify-bar-area .verify-move-block .verify-sub-block {
        position: absolute;
        text-align: center;
        z-index: 3;
        /* border: 1px solid #fff; */
    }

    .verify-bar-area .verify-move-block .verify-icon {
        font-size: 18px;
    }

    .verify-bar-area .verify-msg {
        z-index: 3;
    }

    /*字体图标的css*/
    /*@font-face {font-family: "iconfont";*/
    /*src: url('../fonts/iconfont.eot?t=1508229193188'); !* IE9*!*/
    /*src: url('../fonts/iconfont.eot?t=1508229193188#iefix') format('embedded-opentype'), !* IE6-IE8 *!*/
    /*url('data:application/x-font-woff;charset=utf-8;base64,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') format('woff'),*/
    /*url('../fonts/iconfont.ttf?t=1508229193188') format('truetype'), !* chrome, firefox, opera, Safari, Android, iOS 4.2+*!*/
    /*url('../fonts/iconfont.svg?t=1508229193188#iconfont') format('svg'); !* iOS 4.1- *!*/
    /*}*/

    .iconfont {
        font-family: "iconfont" !important;
        font-size: 16px;
        font-style: normal;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    .icon-check:before {
        content: " ";
        display: block;
        width: 16px;
        height: 16px;
        position: absolute;
        margin: auto;
        left: 0;
        right: 0;
        top: 0;
        bottom: 0;
        z-index: 9999;
        background-image: url("");
        background-size: contain;
    }

    .icon-close:before {
        content: " ";
        display: block;
        width: 16px;
        height: 16px;
        position: absolute;
        margin: auto;
        left: 0;
        right: 0;
        top: 0;
        bottom: 0;
        z-index: 9999;
        background-image: url("");
        background-size: contain;
    }

    .icon-right:before {
        content: " ";
        display: block;
        width: 16px;
        height: 16px;
        position: absolute;
        margin: auto;
        left: 0;
        right: 0;
        top: 0;
        bottom: 0;
        background-size: cover;
        z-index: 9999;
        background-image: url("");
        background-size: contain;
    }

    .icon-refresh:before {
        content: " ";
        display: block;
        width: 16px;
        height: 16px;
        position: absolute;
        margin: auto;
        left: 0;
        right: 0;
        top: 0;
        bottom: 0;
        z-index: 9999;
        background-image: url("");
        background-size: contain;
    }
</style>
